Roland GP-100 Service Notes page 14

1C
DATA/IC
9 -
^
UPD424400LA-70
(
00894845
)
DRAM
TC551001AFL-85L
(15279549)
SRAM
TMS27C040-10JL
(
15209483
)
EP-ROM
(TOP VIEW)
(TOP VIEW)
V
DD
A15
CE2
R/W
A13
AS
A9
All
AlO
CEl
1/08
1/07
1/06
1/05
1/04
5AA7366T
(
00678378
)
AD
CONVERTER
vpp
[2 1
A16
El
A14
El
A12
7
8
9
10
11
12
l/OO 13
l/Ol 14
I/02 El 15
vss
[2 16
32 2]
vcc
31
A18
30
A17
A14
A13
27 A8
26
A9
25
All
24
Ei
23
AlO
22 El
21
1
/07
20
1
/06
19
1
/05
18
1
/04
17
I
/03
UPD63200GS-E2
(
15289714
)
DA
CONVERTER
SFOR
—
1
24
—
SLAVE
STDB
—
2
23
—
VDDA
OVLD
—
3
22
—
VREFL
CK
1
N
—
4 21
—
B
1
L
VDD
—
5
20
—
BOL
VSS
—
6 19
—
VDACP
SDO
—
7
18
—
VDACN
sws
-
8
17
—
BOR
SCK
—
9
16
—
B
1
R
TESTl
—
10 15
—
VREFR
HPEN
—
11 14
—
1
REF
TESTS
—
12 13
—
VSSA
4/8f
S
SEL
1
O
01 Gl
TAL GND
2
16b
i
t/18b
i
t
SEL
3
14
I
Gl
TAL
V
DD
4
ANALOG GND
5 ii
R.
OUT
6 11
ANALOG
V
DD
7
10
ANALOG
V
DD
8
3
CLK
S
I
/LS
I
LRSEL/RS
I
LRCK/WDCK
ANALOG GND
L.
OUT
L.
REF
R,
REF
14